Cellulose insulation has a functional lifetime of more than 50 years!
Blown in cellulose insulation is produced primarily from post-consumer wood pulp (recycled newspapers), typically accounting for roughly 85 % of the insulation by weight. Cellulose insulation is treated with fire-retardant. Borates and boric acid are used most commonly and account for the other 15 % of the cellulose insulation by weight.
